/*
 * Copyright 2022 ThoughtWorks, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.thoughtworks.go.addon.businesscontinuity;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.jdbc.core.support.JdbcDaoSupport;
import org.springframework.stereotype.Repository;

import javax.sql.DataSource;

@Repository
public class DatabaseStatusProvider extends JdbcDaoSupport {

    @Autowired
    public DatabaseStatusProvider(@Qualifier("goDataSource") DataSource datasource) {
        setDataSource(datasource);
    }

    public String latestWalLocation() {
        try {
            return this.getJdbcTemplate().queryForObject("select * from pg_current_xlog_location()", new Object[]{}, String.class);
        } catch (Exception e) {
            return String.format("Not Available, Reason, %s", e.getMessage());
        }
    }

    public String latestReceivedWalLocation() {
        try {
            return this.getJdbcTemplate().queryForObject("select * from pg_last_xlog_receive_location()", new Object[]{}, String.class);
        } catch (Exception e) {
            return String.format("Not Available, Reason, %s", e.getMessage());
        }
    }
}
